What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Porto round-trip?

Flying on Delta is currently your cheapest option to Porto, with prices starting at $441. Additional round-trip tickets that might be worth considering are offered by KLM and Lufthansa, with the lowest prices starting at $568 and $694, respectively. Delta is 56% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What are the most popular airlines that fly from Detroit Metropolitan Wayne County Airport to Porto?

United Airlines, Delta and KLM are the most popular airlines when flying from Detroit Metropolitan Wayne County Airport to Porto.

What is the cheapest time of day to fly from DTW to OPO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Detroit Metropolitan Wayne County Airport to Porto as you normally would.

Most accurate provider : When it comes to deals on Detroit Metropolitan Wayne County Airport-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit Metropolitan Wayne County Airport-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-Porto flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Detroit Metropolitan Wayne County Airport-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit Metropolitan Wayne County Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Detroit to Porto that include hotel bookings?

Yes. In addition to deals on Detroit to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Detroit to Porto?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Porto.

Can I find deals for business class flights from Detroit to Porto?

Yes. Cheapflights offers flight deals from Detroit to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Flights from Detroit Metropolitan Wayne County Airport to Porto

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1. Tell us where you want to go

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3. Compare prices and book

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Find flight deals from Detroit to Porto

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Popular in	June
Cheapest in	March
Average price	$868

Provider with most accurate pricing for Detroit Metropolitan Wayne County-Porto flight deals.

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Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Porto flights.

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Highest demand for flights based on searches. 17% potential increase in price ($222 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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Compare providers for flights from Detroit to Porto

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Porto in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit Metropolitan Wayne County Airport-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-Porto flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit Metropolitan Wayne County Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Detroit to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Detroit with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Porto

Read reviews from past customers who have flown Delta, KLM, and United Airlines from Detroit Metropolitan Wayne County Airport to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,010 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,010 reviews

Delta

7.9

Good

8,010 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

KLM

7.7

Good

1,432 reviews

Delta

7.9

Good

8,010 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,094 reviews

Delta

7.9

Good

8,010 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Lufthansa

6.8

Okay

7,631 reviews

Delta

7.9

Good

8,010 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Porto round-trip?
Flying on Delta is currently your cheapest option to Porto, with prices starting at $441. Additional round-trip tickets that might be worth considering are offered by KLM and Lufthansa, with the lowest prices starting at $568 and $694, respectively. Delta is 56% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from Detroit to Porto that include hotel bookings?
Yes. In addition to deals on Detroit to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Detroit to Porto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Porto.
Can I find deals for business class flights from Detroit to Porto?
Yes. Cheapflights offers flight deals from Detroit to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 4 airlines flying from Detroit to Porto

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$441	Average$1,062	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$568	Average$875	FlexibilityNo cancel fee	On-time75%
Lufthansa	Cheapest$694	Average$939	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$738	Average$942	FlexibilityNo cancel fee	On-time69%

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Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) to Porto (OPO)

Find cheap flights from Detroit to Porto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Detroit to Porto

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Compare providers for flights from Detroit to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Porto in December.

Best time to book a flight from Detroit to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Detroit with our price prediction graph.

Reviews of airlines servicing Porto

Related info for your journey

Find useful and relevant information for your journey from Detroit to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Porto round-trip?

Can I find deals for flights from Detroit to Porto that include hotel bookings?

How can I find direct flights from Detroit to Porto?

Can I find deals for business class flights from Detroit to Porto?

Traveling to a place near Porto?

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Top 4 airlines flying from Detroit to Porto

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